#0	0x0000000101a6e68a in ccl::(anonymous namespace)::kernel_tex_image_interp(ccl::KernelGlobals*, int, float, float) ()
#1	0x0000000101a3381b in ccl::svm_eval_nodes(ccl::KernelGlobals*, ccl::ShaderData*, ccl::PathState*, float*, ccl::ShaderType, int) ()
#2	0x00000001019b5e2e in ccl::kernel_cpu_avx2_shader(ccl::KernelGlobals*, ccl::uint4*, ccl::float4*, int, int, int, int, int) ()
#3	0x0000000101669385 in ccl::CPUDevice::thread_shader(ccl::DeviceTask&) ()
#4	0x0000000103fb3a3a in ccl::TaskScheduler::thread_run(int) ()
#5	0x0000000103fb4fb5 in ccl::thread::run(void*) ()
#6	0x000000010dd13dc3 in _pthread_body ()
#7	0x000000010dd16e8d in _pthread_start ()
#8	0x000000010dd12e11 in thread_start ()

Also found this while bisecting, seems like the same thing, just in different state.
#0	0x0000000101a6b733 in ccl::(anonymous namespace)::kernel_tex_image_interp(ccl::KernelGlobals*, int, float, float) ()
#1	0x0000000101a302fb in ccl::svm_eval_nodes(ccl::KernelGlobals*, ccl::ShaderData*, ccl::PathState*, float*, ccl::ShaderType, int) ()
#2	0x00000001019b290e in ccl::kernel_cpu_avx2_shader(ccl::KernelGlobals*, ccl::uint4*, ccl::float4*, int, int, int, int, int) ()
#3	0x0000000101666885 in ccl::CPUDevice::thread_shader(ccl::DeviceTask&) ()
#4	0x0000000103fb256b in ccl::TaskPool::wait_work(ccl::TaskPool::Summary*) ()
#5	0x00000001024ec319 in ccl::LightManager::device_update_background(ccl::Device*, ccl::DeviceScene*, ccl::Scene*, ccl::Progress&) ()
#6	0x00000001024ede9d in ccl::LightManager::device_update(ccl::Device*, ccl::DeviceScene*, ccl::Scene*, ccl::Progress&) ()
#7	0x0000000102550ac4 in ccl::Scene::device_update(ccl::Device*, ccl::Progress&) ()
#8	0x000000010255514b in ccl::Session::update_scene() ()
#9	0x0000000102556955 in ccl::Session::run_cpu() ()
#10	0x0000000102553f96 in ccl::Session::run() ()
#11	0x0000000103fb4a05 in ccl::thread::run(void*) ()
#12	0x000000010dd13dc3 in _pthread_body ()
#13	0x000000010dd16e8d in _pthread_start ()
#14	0x000000010dd12e11 in thread_start ()